Dependence of the Mechanical Properties of Porous Titanium Nickelide on the Pore Morphology under Compression

Porous materials are widely used in many industries. However, their mechanical properties are inferior to those of their homogeneous non-porous analogues. In the present work, on the example of porous titanium nickelide, we studied the effect of the structure of the solid framework on the mechanical properties of the porous material. A method to improve the mechanical properties by achieving a uniform density profile along the strain direction is considered. It is shown that the uniform distribution of the crystalline matrix along the strain axis does not significantly affect on the mechanical properties of the porous system. The mechanism of pore collapse under compression has been investigated.